The Sun Altimeter 202 will measure altitude from zero to 15,000 feet, and Barometric pressure.

Sometimes an altimeter is as important as a compass for navigation and sometimes it's just fun to know your altitude. You can also predict weather trends by reading increases or decreases in the barometric pressure.

Operation is battery free, so you don't have to worry about the batteries going dead in the middle of your trip.

At only $52 the Sun 202 is a superb value! Resolution is 100 feet.